CN101403393A - System and method for improving flow in pumping systems - Google Patents
System and method for improving flow in pumping systems Download PDFInfo
- Publication number
- CN101403393A CN101403393A CNA2008101619244A CN200810161924A CN101403393A CN 101403393 A CN101403393 A CN 101403393A CN A2008101619244 A CNA2008101619244 A CN A2008101619244A CN 200810161924 A CN200810161924 A CN 200810161924A CN 101403393 A CN101403393 A CN 101403393A
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- China
- Prior art keywords
- impeller
- diffuser
- degree
- trailing edge
- camber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2216—Shape, geometry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/70—Shape
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Mining & Mineral Resources (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A technique and system is provided for improving the efficiency of a centrifugal pump. The centrifugal pump comprises diffusers that optimize the area schedule through the diffuser to diffuse the total fluid velocity and recover dynamic head while minimizing flow separation. Each diffuser comprises an improved transition from the diffuser blade into the diffuser discharge duct to remove abrupt changes in area and to reduce fluid separation. The impellers also can be constructed with impeller transitions able to reduce fluid separation and improve the efficiency of the pump.
Description
Background technique
Centrifugal pump is used to multiple use, includes the purposes of closing well.For example, centrifugal pump is used in electrical submersible (submersible) pumping system that is deployed in the well, to produce or mobile fluid.Centrifugal pump is configured to have many groups impeller and diffuser alternately, is used to make that fluid flows to outlet from the inlet of pump.Impeller is rotated by axle and applies motion via the pump impeller stator to pumping fluid.When fluid from each impeller flow channel through out-of-date, the fluid diffuser channel of flowing through arrives next impeller and final arrives outlet.
Many centrifugal pump designs are owing to sizable fluid breakdown loss has ineffectivity.For example, the centrifugal pump with the configuration of stator radially can be connected the ducted excess diffusion of foil nozzle.Excess diffusion can produce on the flow channel between diffuser vane and the impeller blade, and excess diffusion also can produce to the transition region the pipeline that leads to the diffuser outlet from the diffuser trailing edge.Another position that is vulnerable to excess diffusion influence is the transition region from the inlet of impeller eye pipeline to the impeller blade leading edge.
In some radial mode levels, the trailing edge of diffuser vane is formed thick and blunt element, is used to control the excess diffusion of diffuser flow channel inside, yet this scheme causes producing a large amount of diffusions and separating in the pipeline that just in time is in diffuser trailing edge downstream.A selectivity scheme is used to make the diffuser trailing edge to form the element of relative thin, thereby it is minimum that the area of pipeline in excessively changed, yet this scheme causes diffuse fluid excessive in diffuser channel.
Summary of the invention
Substantially, the present invention proposes a kind of system and method that is used to improve centrifugal pump efficient.Centrifugal pump comprises diffuser, and this diffuser has been optimized the area change on the diffuser (area schedule) to spread whole fluid rate and to recover dynamic head, makes the flow separation minimum simultaneously.Each diffuser comprises that at least one has the diffuser vane of trailing edge, and these trailing edge extend past at least 30 degree enter the diffusion discharge conduit.The transition part that enters the diffusion discharge conduit has been got rid of the flip-flop on any area and has been reduced fluid breakdown, and this has improved the efficient of pump again.In certain embodiments, each impeller comprises at least one impeller blade, and described impeller blade extend past at least 30 degree enter the impeller eye pipeline.The efficient that this impeller transition part has also reduced fluid breakdown and improved pump.
Description of drawings
Describe some embodiment of the present invention below with reference to accompanying drawing, wherein similarly reference character is represented like; And:
Fig. 1 is the front elevation according to the well system of the embodiment of the invention, and this well system has the centrifugal pump in the well of being deployed in;
Fig. 2 is the partial section at the centrifugal pump shown in the well system of Fig. 1 according to the embodiment of the invention;
Fig. 3 is the explanatory view that is used in the diffuser in the centrifugal pump according to the embodiment of the invention;
Fig. 4 is the plotted curve that shows according to the area change that is used for diffuser shown in Figure 3 of the embodiment of the invention;
Fig. 5 is the sectional view according to the part of the centrifugal pump of the embodiment of the invention;
Fig. 6 is the amplification sectional view according to the single flow channel of the impeller of the embodiment of the invention.
Embodiment
In the following description, numerous details are suggested and are used to provide understanding of the present invention.Yet one skilled in the art will appreciate that the present invention does not have these details can be implemented yet, and from described embodiment, can carry out various deformation or improvement.
The present invention relates to a kind of multi-purpose centrifugal pump that can be used in basically.Centrifugal pump is configured to have diffuser and/or impeller, and described diffuser and/or impeller are not vulnerable to excess diffusion and the influence of the fluid breakdown that causes thus.For example, this centrifugal pump can be the form of the oil-immersed pump that uses in the well associated uses.For example, centrifugal pump can be deployed in the electrical submersible pumping system, and this electrical submersible pumping system is used at the well pumping liquid.The unique design of pump diffuser and/or impeller reduced the fluid breakdown loss and improved slip into and other purposes in the efficient of centrifugal pump.
Figure 1 shows that the example of the centrifugal pump 30 that is deployed in the well associated uses.Yet illustrated embodiment only is a plurality of purposes of being benefited from the improvement of centrifugal pump 30 design and an example in the system.Refer again to Fig. 1, centrifugal pump 30 is shown as and is deployed in oil-immersed pump and send system 32 for example in the electrical submersible pumping system.Oil-immersed pump send system 32 to comprise a plurality of parts according to the environment of specific well purposes or its use.Except centrifugal pump 30 employed element be exemplified as at least one oil-submersible motor 34 and one or more motor protecter 36, described oil-submersible motor 34 and motor protecter 36 link together and are used to form oil-immersed pump and send system.
In the embodiment shown, oil-immersed pump send system 32 to be designed to be deployed in the well 38 of 40 inside, stratum, and described stratum 40 comprises needed production fluid, for example hydrocarbon-based fluids.Stratum 40 can arrive by well 42, and this well 42 is drilled in the stratum 40 and from well head 44 extends downwards.Well 42 can be lined with well bore casing 46, and this well bore casing 46 is punched and formed a plurality of perforation 48, and described perforation 48 makes fluid flow between stratum 40 and the well 42 around.
Oil-immersed pump send system 32 to be deployed in the well 42 by transporting system 50, and this transports system 50 can have various configurations.For example, transport system 50 and can comprise pipe 52, for example volute or production are managed, and described pipe 52 is connected to oil-immersed pump by suitable connector 54 and send system 32.Provide power by power cable 56 at least one oil-submersible motor 54, described power cable 56 send system 32 to extend so that be connected with oil-submersible motor 34 along transporting system 50 downwards with oil-immersed pump.Oil-submersible motor 34 provides power to centrifugal pump 30 again, and described centrifugal pump 30 can aspirate fluid by Pump Suction Nozzle 58.In centrifugal pump 30 inside, thereby a plurality of impeller rotation pumping (that is, producing) arrives for example fluid of 60 assembling position on the face of land of required position through pipe 52.Yet multiple other element and system layout can be used for carrying out the polytype pumping operation.
General reference Fig. 2 has shown an embodiment of centrifugal pump 30, and this centrifugal pump 30 has a plurality of pump stages 62, and described pump stage 62 distributes along the major component of centrifugal pump 30 length.Among Fig. 2, only demonstrate several pump stages 62 so that explain.Centrifugal pump 30 also comprises shell 64, and this shell 64 is tubular form and extends between the first pump end 66 and the second pump end 68.Axle 70 is rotatably installed in the inside of shell 64 basically along the axis 72 of centrifugal pump 30.
Each pump stage 62 comprises diffuser 74 and impeller 76.In this embodiment, centrifugal pump 30 is for having the radial mode pump of radial mode impeller and diffuser.(it is radial flow direction with respect to the pump spin axis basically that radial mode impeller and diffuser are configured to main direction that fluid flows.) substantially, impeller 76 together rotates with axle 70 and can be fixed in rotationally on the axle 70 by for example key and keyway.Rotary blade 76 applies motion and makes fluid move to next stage from a level 62 to the fluid of the centrifugal pump 30 of flowing through, and is discharged from up to the outlet flow channel 78 of fluid by the first pump end 66.Diffuser 74 is rotatably fixed in the shell 64 and is used for fluid is directed to next impeller from an impeller 76.
In Fig. 3, schematically shown an embodiment of diffuser 74, this diffuser 74 is configured to prevent excess diffusion and the fluid breakdown that causes thus, described fluid breakdown can produce sizable pumping loss.As shown in the figure, diffuser 74 comprises diffusion admittance 80, and typically comprises a plurality of diffusion admittances 80.Each diffusion admittance 80 is limited by stator or blade 82 at least in part, forms passage between described stator or the blade 82.In addition, each diffuser vane 82 comprises leading edge 84, and this leading edge 84 receives the fluid that comes from next adjacent impeller 76.Streaming flow moves to trailing edge 86 and enters into diffusion discharge conduit zone 88 (Fig. 3 is arranged on trailing edge 86 tops basically) subsequently along diffusion admittance 80.
Diffuser vane trailing edge 86 limits diffusion admittance trailing edge transition part 90, and this transition part 90 reverses or camber towards diffusion discharge conduit 88.The formed shape of design of diffusion admittance trailing edge transition part 90 can cause the area change minimum that moves to diffusion discharge conduit 88 from the trailing edge 86 of diffuser vane 82.This has eliminated fluid flow through trailing edge transition part 90 and excess diffusion and fluid breakdown subsequently when entering diffuser discharge conduit 88.In addition, each diffuser vane 82 is designed to provide controlled diffusion when fluid is flowed through passage.Accordingly, diffuser 74 can spread whole fluid rate and recover dynamic head, and it is minimum that flow separation is dropped to.
The diffusion admittance trailing edge transition part 90 of trailing edge 86 is formed with arc area 92, and this arc area 92 can make each diffusion admittance 80 towards diffusion discharge conduit 88 cambers or reverse, thereby eliminates any significant area change.Shown in the area Figure 94 that shows with graph mode among Fig. 4, when the trailing edge transition part 90 of each diffusion admittance 80 carries out the transition to the inlet of corresponding diffusion discharge conduit 88, produce minimum area change or do not have area change.Point 96 among the Figure 94 of zone has shown transition region and has lacked any significant area change.Thus, when fluid when the trailing edge 86 of each diffuser vane 82 flows to the diffusion discharge conduit 88 that closes on, less relatively diffusion takes place, improved pumping efficiency thus.
As mentioned above, the minimizing of excess diffusion and the fluid breakdown that causes thus can realize by the diffuser 74 that structure has a trailing edge, and described trailing edge is towards diffusion discharge conduit 88 cambers/reverse, thereby the area that reduces in this transition region changes.The minimizing of required fluid breakdown can realize by constructing each diffuser 74, and wherein trailing edge 86 bendings of each diffuser vane 82 or extend past at least 30 degree enter into corresponding diffusion discharge conduit 88, shown in the angle among Fig. 5 98.In other embodiments and according to the configuration of diffuser vane 82, the possibility of fluid breakdown can enter corresponding diffusion discharge conduit 88 and further reduces along arc extend past at least 60 degree by making trailing edge 86, shown in angle 100.In addition, some embodiments of diffuser 74 can receive the minimizing fully that sizable fluid breakdown reduces and obtain in some cases fluid breakdown by the arc (shown in angle 102) that enters corresponding diffusion discharge route 88 formation trailing edges 86 through about 90 degree.For example, the diffuser 74 shown in Fig. 3 has used transition part 90, and wherein about 90 degree of trailing edge 86 extend pasts enter the inlet of diffusion discharge conduit 88.
With reference to figure 5 and Fig. 6, adopt similar constructing technology to make that excess diffusion and the liquor separation that causes are thus reduced by making impeller 76.In the design of many conventional impellers, from the impeller eye pipeline to impeller stator leading edge sizable area taking place increases, and for example 60% or more.This big area increase causes huge fluid breakdown loss usually.As shown in the figure, each impeller 76 comprises one or more impeller stators or blade 104, and described stator or blade 104 guide to next adjacent diffuser 74 with fluid stream from blade inlet pipeline 106.
Each impeller blade 104 comprises leading edge 108 and trailing edge 110, and fluid is received by leading edge 108, and fluid is discharged to next adjacent diffuser along trailing edge 110.In the embodiment shown, the leading edge 108 of impeller blade 104 is designed to along camber line towards 106 transition of impeller eye pipeline.This has guaranteed that the littler area that enters each impeller blade leading edge 108 from impeller eye pipeline 106 increases.The same with diffuser 74, the remarkable minimizing of fluid breakdown is achieved by constructing each impeller 76, wherein leading edge 108 cambers of each impeller blade 104 or extend past at least 30 degree enter in the corresponding impeller eye pipeline 102, shown in the angle in Fig. 5 and 6 112.In other purposes, the possibility of fluid breakdown is achieved by leading edge 108 is entered in the corresponding impeller eye pipeline 106 along arc extend past 60 degree at least, shown in angle 114.In addition, some embodiments of impeller 76 can by make through about 90 degree enter corresponding impeller eye pipeline 106 (shown in angle 116) thus the arc that forms leading edge 108 further reduces the possibility of fluid breakdown.What should be familiar with is that diffuser 74 shown in Fig. 5 and impeller 76 are radial mode diffuser and impeller in the shell 64 that can be deployed in centrifugal pump 30.
The design of diffuser 74 and/or impeller 76 has reduced the excess diffusion in the pumping zone, and this excess diffusion can cause fluid breakdown and the loss of the pumping efficiency that causes thus.Yet the concrete size of diffuser and impeller, structure, material and configuration can be adjusted according to the design of whole pumping system, the fluid of pumping, Environmental Conditions and other design parameter of pumping system.In addition, more effective centrifugal pump can be used in the multiple pumping system (as electrical submersible pumping system) and in the multiple use.
Thus, although only there are the minority embodiments of the invention to be described in detail, those skilled in the art are understood that easily, can carry out various deformation and do not break away from teaching of the present invention substantially.This distortion will be included in as within the scope of the invention defined in the claim.
Claims (25)
1. device comprises:
Centrifugal pump, described centrifugal pump comprises:
A plurality of impellers; And
A plurality of diffusers, each diffuser are the radial mode diffusers with a plurality of diffuser vanes, and described diffuser vane has trailing edge, and described trailing edge camber enters corresponding diffusion discharge conduit through at least 30 degree.
2. device as claimed in claim 1 is characterized in that, described trailing edge camber enters corresponding diffusion discharge conduit through about 90 degree.
3. device as claimed in claim 1 is characterized in that each impeller comprises a plurality of impeller blades, and described impeller blade camber enters corresponding impeller eye pipeline through at least 30 degree.
4. device as claimed in claim 3 is characterized in that, described impeller blade camber enters corresponding impeller eye pipeline through about 90 degree.
5. method that reduces flow separation in the centrifugal pump comprises:
Form a plurality of radial mode diffusers, each diffuser has blade, and described blade has trailing edge, and described trailing edge camber respectively enters corresponding diffusion discharge conduit through at least 30 degree; And
Described a plurality of diffusers and a plurality of impeller sets are dressed up centrifugal pump.
6. method as claimed in claim 5 is characterized in that, described formation step comprises makes each diffuser be formed with trailing edge, and described trailing edge camber enters corresponding diffusion discharge conduit through at least 60 degree.
7. method as claimed in claim 5 is characterized in that, described formation step comprises makes each diffuser be formed with trailing edge, and described trailing edge camber enters corresponding diffusion discharge conduit through about 90 degree.
8. method that reduces flow separation in the centrifugal pump comprises:
Form a plurality of radial mode impellers, each impeller has a plurality of impeller blades, and described impeller blade camber enters corresponding impeller eye pipeline through at least 30 degree; And
Described a plurality of impellers and a plurality of diffuser are assembled into centrifugal pump.
9. method as claimed in claim 8 is characterized in that, comprises that also each impeller of structure makes the impeller blade camber enter corresponding impeller eye pipeline through at least 60 degree.
10. method as claimed in claim 8 is characterized in that, comprises that also each impeller of structure makes the impeller blade camber enter corresponding impeller eye pipeline through about 90 degree.
11. a system comprises:
Oil-submersible motor; And
By the oil-immersed pump that oil-submersible motor drives, described oil-immersed pump comprises a plurality of radial mode diffusers, and each diffuser has the diffuser vane that comprises trailing edge, and described trailing edge camber enters corresponding diffusion discharge conduit through at least 30 degree.
12. system as claimed in claim 11 is characterized in that, each diffuser has and comprises that camber enters the diffuser vane of the trailing edge of corresponding diffusion discharge conduit through at least 60 degree.
13. system as claimed in claim 11 is characterized in that, each diffuser has and comprises that camber enters the diffuser vane of the trailing edge of corresponding diffusion discharge conduit through about 90 degree.
14. system as claimed in claim 11 is characterized in that, oil-immersed pump comprises a plurality of impellers, and each impeller has impeller blade, and described impeller blade camber enters corresponding impeller eye pipeline through about 90 degree.
15. system as claimed in claim 11 is characterized in that, also comprises motor protecter, described motor protecter is deployed between oil-submersible motor and the oil-immersed pump.
16. system as claimed in claim 11 is characterized in that, the flow area in each trailing edge outlet port is identical substantially with the flow area of corresponding diffusion discharge conduit ingress.
17. a device comprises:
Centrifugal pump, described centrifugal pump comprises:
A plurality of impellers, each impeller are the radial mode impellers with a plurality of impeller blades, and described impeller blade camber enters corresponding impeller eye pipeline through at least 30 degree; And
A plurality of diffusers.
18. device as claimed in claim 17 is characterized in that, each diffuser comprises a plurality of diffuser vanes, and described diffuser vane camber enters corresponding impeller eye pipeline through at least 60 degree.
19. device as claimed in claim 17 is characterized in that, each impeller comprises that camber enters a plurality of impeller blades of corresponding impeller eye pipeline through at least 30 degree.
20. method as claimed in claim 5 is characterized in that, comprising:
Make each diffuser be formed with a plurality of diffuser vanes, described diffuser vane limits the flow area in diffuser vane trailing edge outlet port, and each flow area is identical with the flow area cardinal principle of corresponding diffusion discharge conduit ingress.
21. method as claimed in claim 20 is characterized in that, described formation step comprises each diffuser vane trailing edge of formation, makes its camber through at least 30 degree.
22. device as claimed in claim 17 is characterized in that, the impeller blade camber enters corresponding impeller eye pipeline through at least 90 degree.
23. method as claimed in claim 20 is characterized in that, described formation step comprises each diffuser vane trailing edge of formation, makes its camber through about 90 degree.
24. method as claimed in claim 20, it is characterized in that, also comprise a plurality of radial mode impellers are arranged between a plurality of diffusers, and produce each impeller with impeller blade, described impeller blade camber enters corresponding impeller eye pipeline through at least 30 degree.
25. the method for claim 24 is characterized in that, described generation step comprises producing to have camber enters the impeller blade of corresponding impeller eye pipeline through at least 60 degree each impeller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/866,966 US8371811B2 (en) | 2007-10-03 | 2007-10-03 | System and method for improving flow in pumping systems |
| US11/866,966 | 2007-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101403393A true CN101403393A (en) | 2009-04-08 |
| CN101403393B CN101403393B (en) | 2013-06-19 |
Family
ID=40523382
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810161924.4A Expired - Fee Related CN101403393B (en) | 2007-10-03 | 2008-09-27 | System and method for improving flow in pumping systems |
| CNU2008201338123U Expired - Lifetime CN201326579Y (en) | 2007-10-03 | 2008-09-27 | Device and system used for improving flow in pumping system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201338123U Expired - Lifetime CN201326579Y (en) | 2007-10-03 | 2008-09-27 | Device and system used for improving flow in pumping system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8371811B2 (en) |
| CN (2) | CN101403393B (en) |
| RU (1) | RU2488024C2 (en) |
Cited By (5)
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| CN103649458A (en) * | 2011-05-13 | 2014-03-19 | 贝克休斯公司 | Diffuser bump vane profile |
| CN105805024A (en) * | 2014-12-29 | 2016-07-27 | 新乡市夏烽电器有限公司 | An oil field deep well oil extraction device |
| CN108131296A (en) * | 2018-01-25 | 2018-06-08 | 辽宁工程技术大学 | A kind of coil formula centrifugal pump |
| CN110680241A (en) * | 2018-07-06 | 2020-01-14 | 日立环球生活方案株式会社 | Electric fan and electric dust collector with same |
| CN116557305A (en) * | 2023-06-05 | 2023-08-08 | 唐山职业技术学院 | Permanent magnet synchronous motor direct-driven oil-submerged pump |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8371811B2 (en) * | 2007-10-03 | 2013-02-12 | Schlumberger Technology Corporation | System and method for improving flow in pumping systems |
| SG11201402121WA (en) * | 2011-11-09 | 2014-08-28 | Baker Hughes Inc | Impeller vane with leading edge enhancement |
| US9677562B2 (en) | 2014-01-17 | 2017-06-13 | Baker Hughes Incorporated | Stepped balance ring for a submersible well pump |
| AU201614369S (en) | 2016-08-12 | 2016-10-27 | Weir Minerals Australia Ltd | Impeller |
| USD810789S1 (en) | 2016-08-25 | 2018-02-20 | Weir Minerals Australia Ltd. | Pump impeller |
| AU201614664S (en) | 2016-08-25 | 2016-11-08 | Weir Minerals Australia Ltd | Pump impeller |
| USD810788S1 (en) | 2016-08-25 | 2018-02-20 | Weir Minerals Australia Ltd. | Pump impeller |
| RU170839U1 (en) * | 2016-09-30 | 2017-05-11 | Закрытое акционерное общество "РИМЕРА" | ELECTRIC CENTRIFUGAL PUMP STEP |
| US11952875B2 (en) | 2019-10-25 | 2024-04-09 | Schlumberger Technology Corporation | Non-axisymmetric hub and shroud profile for electric submersible pump stage |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4307995A (en) * | 1980-02-01 | 1981-12-29 | Rockwell International Corporation | Vaneless multistage pump |
| JPS60190695A (en) * | 1984-03-12 | 1985-09-28 | Hitachi Ltd | Submersible motor-driven pump |
| SU1350382A1 (en) * | 1985-02-14 | 1987-11-07 | Сахалинский Государственный Научно-Исследовательский И Проектный Институт Газовой Промышленности | Submersible pump unit |
| US4741668A (en) * | 1987-10-13 | 1988-05-03 | Hughes Tool Company | Centrifugal pump stage with abrasion resistant impeller hub |
| DE4031936A1 (en) * | 1990-10-09 | 1992-04-16 | Klein Schanzlin & Becker Ag | CONTROL DEVICE |
| US5207810A (en) | 1991-04-24 | 1993-05-04 | Baker Hughes Incorporated | Submersible well pump gas separator |
| JPH0571490A (en) * | 1991-09-11 | 1993-03-23 | Terumo Corp | Liquid pump device |
| US5344285A (en) * | 1993-10-04 | 1994-09-06 | Ingersoll-Dresser Pump Company | Centrifugal pump with monolithic diffuser and return vane channel ring member |
| NO306312B1 (en) * | 1996-02-09 | 1999-10-18 | Kvaerner Ships Equipment As | Centrifugal pump device |
| TW431562U (en) * | 2000-02-02 | 2001-04-21 | Ind Tech Res Inst | Floating type vane wheel structure for multi-stage type pressing pump |
| US6394183B1 (en) | 2000-07-25 | 2002-05-28 | Schlumberger Technology Corporation | System and method for removing solid particulates from a pumped wellbore fluid |
| US6811382B2 (en) | 2000-10-18 | 2004-11-02 | Schlumberger Technology Corporation | Integrated pumping system for use in pumping a variety of fluids |
| US6723158B2 (en) | 2001-05-30 | 2004-04-20 | Baker Hughes Incorporated | Gas separator improvements |
| US6564874B2 (en) | 2001-07-11 | 2003-05-20 | Schlumberger Technology Corporation | Technique for facilitating the pumping of fluids by lowering fluid viscosity |
| US6779965B2 (en) | 2002-04-26 | 2004-08-24 | Schlumberger Technology Corporation | Integrated axial flow pump |
| US6974246B2 (en) | 2003-05-02 | 2005-12-13 | Arribau Jorge O | Apparatus for blending liquids and solids including improved impeller assembly |
| US6979174B2 (en) * | 2003-10-01 | 2005-12-27 | Schlumberger Technology Corporation | Stage pump having composite components |
| US6971848B2 (en) | 2003-10-01 | 2005-12-06 | Schlumberger Technology Corporation | Multistage pump and method of making same |
| US7133325B2 (en) | 2004-03-09 | 2006-11-07 | Schlumberger Technology Corporation | Apparatus and method for generating electrical power in a borehole |
| CN1696516A (en) * | 2004-05-17 | 2005-11-16 | 江苏大学 | Two stage pump in type of combining guide vane with spiral case |
| US7326037B2 (en) | 2005-11-21 | 2008-02-05 | Schlumberger Technology Corporation | Centrifugal pumps having non-axisymmetric flow passage contours, and methods of making and using same |
| EA009266B1 (en) * | 2006-06-06 | 2007-12-28 | Акиф Намазали оглы Мирзалиев | Submersible centrifugal electric pump |
| US8371811B2 (en) * | 2007-10-03 | 2013-02-12 | Schlumberger Technology Corporation | System and method for improving flow in pumping systems |
-
2007
- 2007-10-03 US US11/866,966 patent/US8371811B2/en active Active
-
2008
- 2008-09-27 CN CN200810161924.4A patent/CN101403393B/en not_active Expired - Fee Related
- 2008-09-27 CN CNU2008201338123U patent/CN201326579Y/en not_active Expired - Lifetime
- 2008-10-02 RU RU2008139345/06A patent/RU2488024C2/en not_active Application Discontinuation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103649458A (en) * | 2011-05-13 | 2014-03-19 | 贝克休斯公司 | Diffuser bump vane profile |
| CN103649458B (en) * | 2011-05-13 | 2016-11-09 | 贝克休斯公司 | Diffuser bump vane profile |
| CN105805024A (en) * | 2014-12-29 | 2016-07-27 | 新乡市夏烽电器有限公司 | An oil field deep well oil extraction device |
| CN108131296A (en) * | 2018-01-25 | 2018-06-08 | 辽宁工程技术大学 | A kind of coil formula centrifugal pump |
| CN110680241A (en) * | 2018-07-06 | 2020-01-14 | 日立环球生活方案株式会社 | Electric fan and electric dust collector with same |
| CN110680241B (en) * | 2018-07-06 | 2021-07-09 | 日立环球生活方案株式会社 | Electric fan and electric dust collector with same |
| CN116557305A (en) * | 2023-06-05 | 2023-08-08 | 唐山职业技术学院 | Permanent magnet synchronous motor direct-driven oil-submerged pump |
| CN116557305B (en) * | 2023-06-05 | 2024-03-26 | 唐山职业技术学院 | Permanent magnet synchronous motor direct-driven oil-submerged pump |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2488024C2 (en) | 2013-07-20 |
| US8371811B2 (en) | 2013-02-12 |
| CN201326579Y (en) | 2009-10-14 |
| RU2008139345A (en) | 2010-04-10 |
| CN101403393B (en) | 2013-06-19 |
| US20090092478A1 (en) | 2009-04-09 |
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